package com.atguigu.gmall.payment.controller;

import com.alipay.api.AlipayApiException;
import com.alipay.api.internal.util.AlipaySignature;
import com.atguigu.gmall.common.result.Result;
import com.atguigu.gmall.model.enums.PaymentType;
import com.atguigu.gmall.model.payment.PaymentInfo;
import com.atguigu.gmall.payment.config.AlipayConfig;
import com.atguigu.gmall.payment.service.AlipayService;
import com.atguigu.gmall.payment.service.PaymentService;
import org.checkerframework.checker.guieffect.qual.UI;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.*;

import java.math.BigDecimal;
import java.util.Map;
import java.util.concurrent.TimeUnit;

/**
 * @author atguigu-mqx
 */
@Controller     //  没有 @ResponseBody 注解
//  @RestController //  后面会有一个同步回调！返回支付成功页面！ redirect "url" ;
@RequestMapping("api/payment/alipay")
public class AlipayController {

    @Autowired
    private AlipayService alipayService;

    @Autowired
    private PaymentService paymentService;

    @Autowired
    private RedisTemplate redisTemplate;

    @Value("${app_id}")
    private String app_id;

    //  生成一个二维码！
    //  http://api.gmall.com/api/payment/alipay/submit/42
    @GetMapping("submit/{orderId}")
    @ResponseBody   //  还能将信息直接输入到页面！
    public String aliPay(@PathVariable Long orderId){
        String form = null;
        try {
            form = alipayService.createAlipay(orderId);
        } catch (AlipayApiException e) {
            e.printStackTrace();
        }
        //  返回数据！
        return form;
    }
    //  同步回调地址：
    //  http://api.gmall.com/api/payment/alipay/callback/return
    @GetMapping("callback/return")
    public String callbackReturn(){
        //  重定向到支付成功页面！
        //  http://payment.gmall.com/pay/success.html
        //  redirect "url" ;
        return "redirect:"+ AlipayConfig.return_order_url;
    }

    //  异步通知：http://rjsh38.natappfree.cc/api/payment/alipay/callback/notify
    //  https: //商家网站通知地址?voucher_detail_list=[{"amount":"0.20","merchantContribute":"0.00","name":"5折券","otherContribute":"0.20","type":"ALIPAY_DISCOUNT_VOUCHER","voucherId":"2016101200073002586200003BQ4"}]&fund_bill_list=[{"amount":"0.80","fundChannel":"ALIPAYACCOUNT"},{"amount":"0.20","fundChannel":"MDISCOUNT"}]&subject=PC网站支付交易&trade_no=2016101221001004580200203978&gmt_create=2016-10-12 21:36:12&notify_type=trade_status_sync&total_amount=1.00&out_trade_no=mobile_rdm862016-10-12213600&invoice_amount=0.80&seller_id=2088201909970555&notify_time=2016-10-12 21:41:23&trade_status=TRADE_SUCCESS&gmt_payment=2016-10-12 21:37:19&receipt_amount=0.80&passback_params=passback_params123&buyer_id=2088102114562585&app_id=2016092101248425&notify_id=7676a2e1e4e737cff30015c4b7b55e3kh6& sign_type=RSA2&buyer_pay_amount=0.80&sign=***&point_amount=0.00
    @PostMapping("/callback/notify")
    @ResponseBody
    public String callbackNotify(@RequestParam Map<String, String> paramsMap){
        System.out.println("你回来了.....");
        // Map<String, String> paramsMap = ... // 将异步通知中收到的所有参数都存放到map中
        boolean signVerified = false; //调用SDK验证签名
        try {
            signVerified = AlipaySignature.rsaCheckV1(paramsMap, AlipayConfig.alipay_public_key, AlipayConfig.charset, AlipayConfig.sign_type);
        } catch (AlipayApiException e) {
            e.printStackTrace();
        }
        //  获取异步通知的参数中的订单号！
        String outTradeNo = paramsMap.get("out_trade_no");
        //  获取异步通知的参数中的订单总金额！
        String totalAmount = paramsMap.get("total_amount");
        //  获取异步通知的参数中的appId！
        String appId = paramsMap.get("app_id");
        //  获取异步通知的参数中的交易状态！
        String tradeStatus = paramsMap.get("trade_status");
        //  根据outTradeNo 查询数据！
        PaymentInfo paymentinfo = this.paymentService.getPaymentInfo(outTradeNo, PaymentType.ALIPAY.name());
        //  保证异步通知的幂等性！notify_id
        String notifyId = paramsMap.get("notify_id");

        //  true:
        if(signVerified){
            // TODO 验签成功后，按照支付结果异步通知中的描述，对支付结果中的业务内容进行二次校验，校验成功后在response中返回success并继续商户自身业务处理，校验失败返回failure
            if (paymentinfo==null || new BigDecimal("0.01").compareTo(new BigDecimal(totalAmount))!=0
                || !appId.equals(app_id)){
                return "failure";
            }
            //  放入redis！ setnx：当 key 不存在的时候生效！
            Boolean flag = this.redisTemplate.opsForValue().setIfAbsent(notifyId, notifyId, 1462, TimeUnit.MINUTES);
            //  说明已经处理过了！
            if (!flag){
                return "failure";
            }
            if ("TRADE_SUCCESS".equals(tradeStatus) || "TRADE_FINISHED".equals(tradeStatus)){
                //  修改交易记录状态！再订单状态！
                this.paymentService.paySuccess(outTradeNo,PaymentType.ALIPAY.name(),paramsMap);
                //  this.paymentService.paySuccess(paymentinfo.getId(),paramsMap);
                return "success";
            }
        }else{
            // TODO 验签失败则记录异常日志，并在response中返回failure.
            return "failure";
        }
        return "failure";
    }
    //  http://localhost:8205/api/payment/alipay/refund/20
    //  退款：
    @GetMapping("refund/{orderId}")
    @ResponseBody
    public Result refund(@PathVariable Long orderId){
        //  调用退款方法
        Boolean flag = this.alipayService.refund(orderId);
        return Result.ok(flag);
    }

    //  关闭支付宝交易记录!
    @GetMapping("closePay/{orderId}")
    @ResponseBody
    public Boolean closePay(@PathVariable Long orderId){
        //  调用方法
        Boolean flag = this.alipayService.closePay(orderId);
        return flag;
    }

    //  查询是否有交易记录！
    @GetMapping("checkPayment/{orderId}")
    @ResponseBody
    public Boolean checkPayment(@PathVariable Long orderId){
        //  调用方法
        Boolean flag = this.alipayService.checkPayment(orderId);
        return flag;
    }

    //  查询paymentInfo 的方法，编写一个控制器！
    @GetMapping("getPaymentInfo/{outTradeNo}")
    @ResponseBody
    public PaymentInfo getPaymentInfo(@PathVariable String outTradeNo){
        //  获取paymentInfo
        PaymentInfo paymentInfo = this.paymentService.getPaymentInfo(outTradeNo, PaymentType.ALIPAY.name());
        if (paymentInfo!=null){
            return paymentInfo;
        }else {
            return null;
        }
    }

}
